On Sat, Oct 26, 2013 at 06:12:27PM +0800, Alexander Wu wrote:
> Add headers and function prototype for table features.
> And modify the limits of mp-table-features msg
>
> Signed-off-by: Alexander Wu <[email protected]>
> ---
> lib/ofp-msgs.h | 4 +-
> lib/ofp-util.h | 159
> ++++++++++++++++++++++++++++++++++++++++++++
> ofproto/ofproto-provider.h | 3 +
> 3 files changed, 164 insertions(+), 2 deletions(-)
>
> diff --git a/lib/ofp-msgs.h b/lib/ofp-msgs.h
> index aa19fe3..9a679f4 100644
> --- a/lib/ofp-msgs.h
> +++ b/lib/ofp-msgs.h
> @@ -336,10 +336,10 @@ enum ofpraw {
> /* OFPST 1.3+ (11): struct ofp13_meter_features. */
> OFPRAW_OFPST13_METER_FEATURES_REPLY,
>
> - /* OFPST 1.3+ (12): struct ofp13_table_features[]. */
> + /* OFPST 1.3+ (12): void. */
> OFPRAW_OFPST13_TABLE_FEATURES_REQUEST,
>
> - /* OFPST 1.3+ (12): struct ofp13_table_features[]. */
> + /* OFPST 1.3+ (12): struct ofp13_table_features, uint8_t[8][]. */
> OFPRAW_OFPST13_TABLE_FEATURES_REPLY,
>
> /* OFPST 1.0+ (13): void. */
> diff --git a/lib/ofp-util.h b/lib/ofp-util.h
> index 1f77808..a33ddec 100644
> --- a/lib/ofp-util.h
> +++ b/lib/ofp-util.h
> @@ -598,6 +598,165 @@ enum ofperr ofputil_decode_table_mod(const struct
> ofp_header *,
> struct ofpbuf *ofputil_encode_table_mod(const struct ofputil_table_mod *,
> enum ofputil_protocol);
>
> +struct ofputil_table_feature_prop_header {
> + uint16_t type; /* One of OFPTFPT_*. */
> + uint16_t length; /* Length in bytes of this property. */
> + uint8_t *data;
> +};
> +
> +#define OTF_GET (1 << 0)
> +#define OTF_SET (1 << 1)
Perhaps an enum is appropriate for these values.
> +#define OFTABLE_NUM 0xff
> +
> +/* Abstract ofp13_table_features */
> +struct ofputil_table_features {
> + uint16_t length; /* Length is padded to 64 bits. */
> + uint8_t table_id; /* Identifier of table. Lower numbered tables
> + are consulted first. */
> + char name[OFP_MAX_TABLE_NAME_LEN];
> + uint64_t metadata_match; /* Bits of metadata table can match. */
> + uint64_t metadata_write; /* Bits of metadata table can write. */
> + uint32_t config; /* Bitmap of OFPTC_* values */
> + uint32_t max_entries; /* Max number of entries supported. */
> +
> + struct ofputil_table_feature_prop_header props[0xff];
> + uint16_t n_property;
> +};
> +
> +
I think that one blank line is sufficient here.
> +struct oxm_variable {
> + uint32_t data;
> + char *name;
> +};
> +
> +extern struct oxm_variable oxm_variables[];
> +int get_oxm_num(void);
> +char *get_oxm_name(uint32_t type);
oxm_variables, get_oxm_num and get_oxm_name are added in the next patch not
this one. So its declaration should go there too.
> +
> +/* Table Feature property types.
> + * Low order bit cleared indicates a property for a regular Flow Entry.
> + * Low order bit set indicates a property for the Table-Miss Flow Entry. */
> +enum ofputil_table_feature_prop_type {
> + OFPUTIL_INSTRUCTIONS = 0, /* Instructions property. */
> + OFPUTIL_INSTRUCTIONS_MISS = 1, /* Instructions for table-miss. */
> + OFPUTIL_NEXT_TABLES = 2, /* Next Table property. */
> + OFPUTIL_NEXT_TABLES_MISS = 3, /* Next Table for table-miss. */
> + OFPUTIL_WRITE_ACTIONS = 4, /* Write Actions property. */
> + OFPUTIL_WRITE_ACTIONS_MISS = 5, /* Write Actions for table-miss. */
> + OFPUTIL_APPLY_ACTIONS = 6, /* Apply Actions property. */
> + OFPUTIL_APPLY_ACTIONS_MISS = 7, /* Apply Actions for table-miss. */
> + OFPUTIL_MATCH = 8, /* Match property. */
> + OFPUTIL_WILDCARDS = 10, /* Wildcards property. */
> + OFPUTIL_WRITE_SETFIELD = 12, /* Write Set-Field property. */
> + OFPUTIL_WRITE_SETFIELD_MISS = 13, /* Write Set-Field for table-miss. */
> + OFPUTIL_APPLY_SETFIELD = 14, /* Apply Set-Field property. */
> + OFPUTIL_APPLY_SETFIELD_MISS = 15, /* Apply Set-Field for table-miss. */
> + OFPUTIL_EXPERIMENTER = 0xFFFE, /* Experimenter property. */
> + OFPUTIL_EXPERIMENTER_MISS = 0xFFFF, /* Experimenter for table-miss. */
> +};
This seems to duplicate ofp13_table_feature_prop_type.
I wonder if it is necessary.
> +
> +struct ofputil_instruction {
> + uint16_t type; /* Instruction type */
> + uint16_t len; /* Length of this struct in bytes. */
> + uint8_t pad[4];
> +};
> +
> +/* Instructions property */
> +struct ofputil_table_feature_prop_instructions {
> + uint16_t type; /* One of OFPUTIL_INSTRUCTIONS,
> + OFPUTIL_INSTRUCTIONS_MISS. */
> + uint16_t length; /* Length in bytes of this property. */
> + uint8_t table_id;
> + uint8_t n_instructions;
> + /* Followed by:
> + * - Exactly (length - 4) bytes containing the instruction ids, then
> + * - Exactly (length + 7)/8*8 - (length) (between 0 and 7)
> + * bytes of all-zero bytes */
> + struct ofputil_instruction *instruction_ids;
> +};
> +
> +#define NEXT_TABLE_NUM 0xff
> +
> +struct ofputil_table_feature_prop_next_tables {
> + uint16_t type; /* One of OFPUTIL_NEXT_TABLES,
> + OFPUTIL_NEXT_TABLES_MISS. */
> + uint16_t length; /* Length in bytes of this property. */
> + uint8_t n_next_table;
> + /* Followed by:
> + * - Exactly (length - 4) bytes containing the table_ids, then
> + * - Exactly (length + 7)/8*8 - (length) (between 0 and 7)
> + * bytes of all-zero bytes */
> + uint8_t next_table_ids[NEXT_TABLE_NUM]; /* List of table ids. */
> +};
> +
> +struct ofputil_table_feature_prop_actions {
> + uint16_t type; /* One of OFPUTIL_WRITE_ACTIONS,
> + OFPUTIL_WRITE_ACTIONS_MISS,
> + OFPUTIL_APPLY_ACTIONS,
> + OFPUTIL_APPLY_ACTIONS_MISS. */
> + uint16_t length; /* Length in bytes of this property. */
> + uint8_t n_actions;
> + /* Followed by:
> + * - Exactly (length - 4) bytes containing the action_ids, then
> + * - Exactly (length + 7)/8*8 - (length) (between 0 and 7)
> + * bytes of all-zero bytes */
> + struct ofp_action_header *action_ids; /* List of actions
> + without any data */
> +};
> +
> +/* Match, Wildcard or Set-Field property */
> +struct ofputil_table_feature_prop_oxm {
> + uint16_t type; /* One of OFPTFPT13_MATCH, OFPTFPT13_WILDCARDS,
> + OFPTFPT13_WRITE_SETFIELD,
> + OFPTFPT13_WRITE_SETFIELD_MISS,
> + OFPTFPT13_APPLY_SETFIELD,
> + OFPTFPT13_APPLY_SETFIELD_MISS. */
> + uint16_t length; /* Length in bytes of this property. */
> + uint8_t n_oxm;
> + /* Followed by:
> + * - Exactly (length - 4) bytes containing the oxm_ids, then
> + * - Exactly (length + 7)/8*8 - (length) (between 0 and 7)
> + * bytes of all-zero bytes */
> + /* enum ofputil_match_bitmap oxm_bits; */ /* Array of OXM headers */
> +};
> +
> +/* Experimenter table feature property */
> +struct ofputil_table_feature_prop_experimenter {
> + uint16_t type; /* One of OFPTFPT13_EXPERIMENTER,
> + OFPTFPT13_EXPERIMENTER_MISS. */
> + uint16_t length; /* Length in bytes of this property. */
> + uint32_t experimenter; /* Experimenter ID which takes the same form
> + as in struct ofp_experimenter_header. */
> + uint32_t exp_type; /* Experimenter defined. */
> + /* Followed by:
> + * - Exactly (length - 12) bytes containing the experimenter data, then
> + * - Exactly (length + 7)/8*8 - (length) (between 0 and 7)
> + * bytes of all-zero bytes */
> + /*uint32_t experimenter_data[10]; */
> +};
> +
> +enum ofperr
> +ofputil_decode_table_features_request(const struct ofp_header *oh, int *n,
> + struct ofputil_table_features tfs[], uint32_t
> *flag);
> +
> +enum ofperr
> +ofputil_decode_table_features_reply(const struct ofp_header *oh, int
> *tfs_num,
> + struct ofputil_table_features tfs[]);
> +
> +struct ofpbuf *
> +ofputil_encode_table_features_request(enum ofp_version ofp_version);
> +
> +void
> +ofputil_append_table_features_reply(const struct ofputil_table_features *tf,
> + struct list *replies);
> +uint16_t get_prop_length(uint16_t type);
> +
> +char *get_prop_name(uint16_t type);
> +
> +struct ofpbuf *
> +ofputil_encode_table_features(const struct ofputil_table_features tfs[], int
> n,
> + const struct ofp_header *oh);
> +
The functions above are defined in the following patch.
Their declarations should go there too.
> /* Meter band configuration for all supported band types. */
> struct ofputil_meter_band {
> uint16_t type;
> diff --git a/ofproto/ofproto-provider.h b/ofproto/ofproto-provider.h
> index 07bb266..5886dec 100644
> --- a/ofproto/ofproto-provider.h
> +++ b/ofproto/ofproto-provider.h
> @@ -152,6 +152,8 @@ struct ofproto {
> struct hmap groups OVS_GUARDED; /* Contains "struct ofgroup"s. */
> uint32_t n_groups[4] OVS_GUARDED; /* # of existing groups of each type.
> */
> struct ofputil_group_features ogf;
> + /* ANOTHER solution. it doesn't need to copy */
> + struct ofputil_table_features otf[OFTABLE_NUM]; /* seems like to be
> "tf", not "otf" */
> };
>
> void ofproto_init_tables(struct ofproto *, int n_tables);
> @@ -258,6 +260,7 @@ struct oftable {
> uint32_t eviction_group_id_basis;
> struct hmap eviction_groups_by_id;
> struct heap eviction_groups_by_size;
> + struct ofputil_table_features tf;
> };
>
> /* Assigns TABLE to each oftable, in turn, in OFPROTO.
> --
> 1.7.3.1.msysgit.0
>
>
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>
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